Title : Rate Sensitive System for a Seismic Sensing Range Containment Apparatus.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE ARMY WASHINGTON D C

Personal Author(s) : Varecka,Charles P ; Merhar,Donald M

Report Date : 29 Aug 1978

Pagination or Media Count : 7

Abstract : The invention relates to a rate sensitive system for a seismic sensing pedestrian range containment device monitors the shift in relative energy of a footstep as a function of footstep rate. A rate sensitive relative energy measurement circuit operates in conjunction with the detection of human footsteps and classification of personnel to limit the detection range of a seismic sensor to specific distance range. (Author)